<!DOCTYPE html>
<html lang="zh-CN">
<head>
    <meta charset="UTF-8">
    <title>HTML全局属性</title>
    <style>
        .student {
            color: red;
        }
    </style>
</head>
<body>
    <div id="hello1">你好啊！</div>
    <div id="hello2">你好啊2！</div>
    <div class="student">张三</div>
    <div class="student">李四</div>
    <div style="color:green">旺财</div>
    <bdo dir="rtl">你是年少的欢喜</bdo>
    <div dir="rtl">你是年少的欢喜</div>
    <div title="英雄联盟">LOL</div>
    <a href="https://www.baidu.com" title="去百度">去百度</a>
    <div lang="en">hello</div>
</body>
</html>